Advertisements
Advertisements
Question
The table given below contains some measures of the rectangle. Find the unknown values.
| Length | Breadth | Perimeter | Area |
| ? | 4 feet | ? | 20 sq.feet |
Solution
b = 4 feet
Area = 20 sq.feet
Area = l × b sq.feet
20 = l × 4
l = `20/4` feet
l = 5 feet
Perimeter = 2(l + b) units
p = 2(5 + 4) feet
= 2 × 9
p = 18 feet
Completing the unknown values in the table.
| Length | Breadth | Perimeter | Area |
| 5 feet | 4 feet | 18 feet | 20 sq.feet |
APPEARS IN
RELATED QUESTIONS
Find the perimeter of a rectangle whose length = 22.5 m and breadth = 16 dm.
If P denotes perimeter of a rectangle, l denotes its length and b denotes its breadth, find:
l, if P = 38cm and b = 7cm
How much wire will be needed to make a rectangle of length 6 cm and breadth 3 cm?
Take a thick paper sheet of length 14 cm and width 9 cm. You can also use an old postcard.
- What is its area? What is its perimeter?
Can you make a rectangle with a still longer boundary? I made a rectangle 1 cm wide and 80000 m long. Imagine how long that boundary will be!!! With that much gold wire I can become a king!
Following figures are formed by joining six unit squares. Which figure has the smallest perimeter in figure?
Perimeter of the shaded portion in the given figure is ______.
AB + _ + _ + _ + _ + _ + _ + HA
In an exhibition hall, there are 24 display boards each of length 1m 50 cm and breadth 1 m. There is a 100m long aluminium strip, which is used to frame these boards. How many boards will be framed using this strip? Find also the length of the aluminium strip required for the remaining boards.
Find the perimeter of the following figure:
Find the perimeter of the following shape:
A triangle of sides 3 cm, 4 cm and 5 cm.
